Cisco has been forced to issue two security patches to block holes in its Internetwork Operating System (IOS).
One of the flaws leaves IOS-based Cisco devices open to a Denial of Service (DoS) attack, and the other one allows intruders unauthorised access to a network.
The DoS vulnerability affects routers and other devices running Secure Shell (SSH) servers for remote management. The hole affects IOS-based devices running SSH version 2.
The vulnerability which allows intruders into a network can allow an attacker to send rogue code to a router to allow access.
This hole only affects devices running IOS Easy VPN Server.